Major Traffic Delays on US Highway 101

Traffic Collision on US Highway 101 North in San Mateo Causes Delays Today

📍 San Mateo, CA

📅 Published: September 23, 2025 at 11:01 AM

Map showing the location of the accident in San Mateo, CA
San Mateo, September 23, 2025 -

A traffic collision on US Highway 101 North in San Mateo, CA, caused significant disruptions during the morning commute today. The incident involved two vehicles, including a red Toyota, and occurred around 9:33 AM. Initial reports indicated that lanes two and three were blocked, leading to delays and congestion for drivers in the vicinity.

Emergency response units promptly arrived at the scene to manage traffic and ensure safety. By 9:47 AM, all vehicles were moved to the right side of the highway, allowing for a gradual reopening of the lanes. By 9:51 AM, a police unit confirmed that all lanes were open, restoring normal traffic flow.

The quick response from emergency personnel helped minimize the impact of the traffic incident, allowing drivers to resume their journeys with minimal delay. However, motorists were advised to remain cautious as residual congestion may linger in the area following the incident.

This traffic collision highlights the importance of safe driving practices, especially during peak travel times. For real-time updates on traffic conditions, drivers are encouraged to check local traffic reports.

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